Science: Question Preview (ID: 31808)

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A property of rocks that tells its color when grounded into a powder
a) Streak
b) Luster
c) Hardness

The age of a rock when compared to another rock
a) Relative age
b) Absolute age
c) Half-Life

One of the four long stretches of time in Earth's history
a) Era
b) Precambrian
c) Cenozoic
d) Paleozoic

These rocks form due to cemention of sediment
a) Sedimentary
b) Igneous
c) metamorphic

A property of minerals that tells how it reflects light
a) Luster
b) Hardness
c) Streak

The actual age of a rock
a) Absolute
b) Relative
c) Half-life

Igneous rocks that form underground
a) Intrusive
b) Extrusive

The time it takes for half of a radioactive element to decay
a) Half-life
b) Whole-life
c) Medium-life

Igneous rocks that form above ground
a) Extrusive
b) Intrusive

The oldest rock layer would be on the
a) Bottom
b) Top
c) middle

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